Hoisting-bucket.



PATENTED JULY 9,1907.

0. CHASE. HOISTING BUCKET.

APPLIOA'IION FILED MAR. 15, 1906. RENEWED DBO. 2B, 1908.

*UNITED STATES PATENT OFFICE.

CLARK CHASE, OF FALL RIVER, MASSACHUSETTS,-ASSIGNOR TO AMERICAN CABLEWAY COMPANY, OF FALL RIVER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

HOIS'IING-BINIGKET.

N 0. 859, 543. Specification of Letters Patent. Patented July 9, 1907. Original application filed June 6, 1905, Serial No. 263,969. Divided and this application filed March 15, 1906. Renewed December 26, 1906. Serial No- 349344.

To all whom it may concern: of rod 82 by links 86. Mounted on the guide member Be it known that I, CLARK CnAsn, a citizen oi the 83 are two pulleys 87 one on each side of the rod; and in United States, residing at Fall River, in the county of engagement with the side and top portion oi the guide Bristol and State of Massachusetts, have invented cermember 83, are two spring members 88, fixed to the 5 tain newand useful Improvements in Hoisting Buckguide plates80, and having shoulders 89 catching and ets, of which the following is a specification. engaging said top and side portions of the guide in em- My invention relates to hoisting buckets, and resides ber 83, as clearly appears from Figs 4 and 5. 60 in mechanical means whereby the weight of a bucket Pivoted upon the rod 82, and confined within two or receptacle of a load-bearing member that may be slotted retaining members 93 fixed to the guide memfastened, unfastened and movably secured to a susber 83, is a dumping lever 90, designed to be operated taining member, is utilized for opening and closing the by hand or by a lanyard, and having cam surfaces 91 bucket for the purpose of loading and unloading the tocngage the adjacent shoulders 89 of the spring mem- 65 contents of the bucket. bers 88. The rope 2 passes from the pulley 210 on the By reason of my invention the discharging of the supporting melnber C, down through a guide 92, guide bucket is under easy manual control of the operator, plate 83, round the pulley 87, up over the pulley 81, while its closing and locking are entirely automatic. down under the second pulley 87, up through the guide The advantages resulting from my invention will be plate 83, guide 92, and is made fast to, say a hook 122 70 obvious, especially when the bucket is of large dimenupon the supporting member C. sions, and its movably secured bottom is heavy. When the cross arm 37, Fig. 1, has become detached A reference to my application for United States Letfrom the hook 121, the weightof the load bearing memtors-Patent Serial No. 263,969, filed by me June 6th, ber and the tub is sustained by the rope 2 which is en- 1905, and of which this application is a division, shows gaging the pulleys 87 81, 87; the strands of the rope 2 75 how my invention may be of great utility in connection tending to draw the pulley 81 downward toward the with a movable sustaining member of a loading and unpulleys 87, 87; but this tendency is counteracted by leading elevated carrier. However, for the purpose of the shoulder 89, Fig. 4, of the stiff, spring members 88, illustrating my invention in this application, the sus engaging the edge and top portion of the guide memtaining member is assumed to be stationary. ber 83; the bottom of the tub, therefore, remains closed. 80

Figure 1 shows my invention closed, and supported The tub being detached from the supporting member, by a hoisting and lowering rope; said invention having that is, movably secured to the supporting member,

just become disengaged from the hook of its sustaining and ready for dumping, see Fig. 1, the dumping lever member; Fig. 2 shows it open and supported by a hoist- 90 is moved, as in the direction indicated by the arrow ing and lowering rope; Fig. 3 shows it in engagement in Fig. 5, the shoulders 89 are moved out of engagement 85 with the hook of its supporting member, and in the act with the guide member 83, and the weight of the tub, of descending, all of which causes the bottom to close, acting on the rope 2 and its pulleys 87, 81, 87, causes and to become locked, as shown in Fig. 1; while Figs. the pulley 81 and the rod 82 to move downward rela- 4 and 5 are a side elevation and a plan, showing details tively to the doors of the bottom 85, and they are forced of the construction. open; all the parts appearing in the positions shown 90 In the drawings illustrating the principle of my inin Fig. 2. The tub, by this operation, having been vention, and the best mode now known to me of emdumped, it is returned to the supporting member by 40 bodying that principle, A is a load-bearing member hauling on the rope 2; the parts of the tub remaining having a receptacle, bucket or tub B, while C is a supin the same position shown in Fig. 2, until the crossporting member. A cross-bar 37, is designed to engage bar 37 engages, and becomes detachably fastened to, 9 a hook 121., on the supporting member 0, and is mountthe hook 121 of the supporting member, at which moed in guide plates 80, which assist in guiding the loadment, the rope 2 being slackened, the weight of the tub hearing member into fastening engagement with the causes the tub to descend, the guide members 83 to supporting member. Mounted between these guide move down the bar 82, and the doors of the bottom plates 80 and below them, is a pulley 81; extending to begin to close, all of which is apparent in Fig. 3. down from the guide plates is a rod 82 which passes The shoulders 89 of the spring members 88 slide along through two guides 83, 84, forming part of the tub, and the edges of the guide member 83, and when they pass 50 holding the rod 82 in a plane, say perpendicular to the they snap into engagement with the guide member 83, plane of the tub. Pivoted to the lower sides of the tub, force the cam lever 90 back into position for the next and forming its bottom, are two doors 85 opening downdumping of the tub, and securely close the bottom of ward, and pivotally connected to the free end portion the tub.

In fine, after the tub is unfastened from its sustaining member, in any well known way, it may be dumped at the time desired, by moving the dumping lever; and, if, after the tub is dumped, the cross-bar is lifted in position above the hook, to be fastened thereto, and haul line 2 is released, the tub will become automatically closed by the action of its own weight.

As is stated above, my new receptacle, tub, or bucket, may be used with other forms of supporting members, either stationary or movable, as a carriage, and, desiring to claim my invention in the broadest manner legally possible, it being understood that the salient feature of my invention may be embodied in many different forms without departing from the principle thereof.

What I claim is:

1. In a load-bearing member, a receptacle adapted to be opened and closed; a member movably mounted in said receptacle; one end portion of said member being designed to be detachably fastened to a support; and the other end portion of said member being opcratively connected to said receptacle, to cause said receptacle to close and be held closed while the weight of the receptacle is borne by said member.

2. In a load-bearing member, a receptacle having an outlet opening therein; a device to close the outlet; a rod movably mounted in said receptacle; the adjacent end portion of said rod being operatively connected with the outlet closing device; and means whereby the rod may be detachably fastened to a support; all designed so that while the receptacle is sustained from the support, the weight of the receptacle causes the outlet closing device to close the receptacle and hold it closed.

3. A load-bearing member consisting of a receptacle having an outlet opening therein a device to close the outlet; a rod movably mounted in said receptacle, and whose adjacent end portion is operatively connected with the closing device of the outlet; a rope, to raise and lower the receptacle, in moving engagement with the opposite end portion of the rod, and with the receptacle; means whereby the rod may be detachably fastened to a supporting member; means whereby the red, when the outlet is closed, may be automatically locked to the receptacle, and have no movement relatively thereto; and means whereby the rod may be unlocked from the receptacle whose weight, acting on the rope, causes the rod to approach the receptacle, and force open the closing device of the receptacle.

-t. A load-bearing member consisting of a receptacle having an outlet in its bottom; a door pivoted to close said outlet; a rod movably mounted in said receptacle; 3. link pivotally connecting the door and the adjacent end portion of the rod; :1 pulley mounted on the opposite end portion of the rod; two pulleys mounted on the receptacle; a rope passing over one pulley on the receptacle, the pulley on the rod, and the other pulley on the receptacle; the rope being used to raise and lower the load-bearing member; a spring plate, and means to secure the same to the rod, whereby, when the outlet is closed, a shoulder on said plate automatically engages the receptacle and locks the closed door to the receptacle; a cam-lever to disengage the spring plate and the receptacle, and permit the weight of the latter, acting through the rope, to force the rod downward and open the door; a cross-bar, and means to secure the same to the rod, whereby the rod may be detachably fastened to a supporting member.

In testimony whereof I aliix my signature in presence of two witnesses.

CLARK CHASE.

Witnesses BENJAMIN BUFFINTON, Geo. 1. Dunrnn. 

